<html>
  <head>
    <style>
      body {
        align-items: center;
        background-color: #224;
        display: flex;
        justify-content: center;
        margin: none;
        padding: none;
      }

      body.shutdown {
        background-color: #422;
      }

      body.shutdown #player {
        display: none;
      }
    </style>
  </head>
  <body>
    <video id="player"></video>
    <script src="receiver.js"></script>
  </body>
</html>
